Victorian terraced property in South West London fitted with bespoke timber sash windows and slimline double glazing
Local South London Specialists

Preserving period timber windows in Sunbury-On-Thames

Eden Sash Windows, led by Director Charlie Burgess, specialises in the meticulous restoration of period timber sash windows across Sunbury-On-Thames and the wider Spelthorne area. We focus on preserving original Victorian, Georgian, and Edwardian architectural features rather than pushing for unnecessary replacements. By prioritising the care of original box frames, we help maintain the unique character of local properties while ensuring they meet modern standards of comfort and performance.

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Heritage Timber Restoration

Restoring Period Sashes With Architectural Precision.

Bespoke timber multi-pane sash bay window installed on a Victorian brick townhouse
FENSA Registered Joinery Bespoke timber splicing, draught exclusion, and conservation-compliant restoration across London and Westminster.
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Our approach to heritage sash window repair

Our restoration process is rooted in traditional joinery techniques, focusing on the longevity of your existing windows. We splice seasoned timber into decayed sills to strengthen the structure and carry out precise box frame repairs to ensure long-term stability. For windows that have become stiff or stuck, our team replaces worn wax-cotton sash cords and meticulously rebalances the cast iron or lead counterweights, restoring the smooth glide that these windows were designed for.

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Improving thermal efficiency and acoustic comfort

We recognise that many period homes in Sunbury-On-Thames face challenges with draughts and noise, particularly those near busier roads. To address this without compromising heritage aesthetics, we install discreet, hidden brush seals into your existing frames. For enhanced thermal performance, we provide bespoke double glazing upgrades. These argon-filled, low-emissivity units replicate authentic historic sightlines, satisfying conservation demands while significantly reducing heat loss and external street noise.

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Do you need planning permission for window restoration?

Many homeowners are rightly concerned about conservation constraints when considering window work. In most cases, like-for-like timber repairs and the installation of sympathetic draught-proofing do not require formal planning consent. However, for properties located within specific conservation areas or those that are Grade II listed, alterations—including double glazing—must be handled with care to comply with local planning authority regulations. Charlie Burgess provides informed advice on these requirements, ensuring that your project remains fully compliant while achieving the performance improvements you need.

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Professional standards and project guarantees

As a FENSA-registered company, we adhere to strict building regulations across all our installations. We carry 2 million pounds in public liability insurance, offering you peace of mind throughout the restoration process. Every new bespoke timber window we install is backed by a 10-year guarantee, reflecting our confidence in the materials we use and the quality of our craftsmanship. Whether you have a single window in need of attention or a full property restoration, we manage your project with clean internal working practices and respect for your home.

Book a detailed sash survey and written quotation today by calling 020 7046 0157 to discuss your restoration project.

Heritage Timber Standards

Why Choose Eden Sash Windows?

Led by Charlie Burgess from our Battersea workshop, we deliver specialist timber sash restoration, draught-proofing, and conservation-led joinery across London and Westminster.

Conservation & Article 4 Expertise

Deep knowledge of Westminster, Wandsworth, and Lambeth heritage planning controls, preserving authentic sightlines and delicate mouldings without plastic shortcuts.

FENSA Registered & Guaranteed

Complete peace of mind with FENSA certification on replacement installations, backed by a comprehensive 10-year guarantee and £2m public liability insurance.

Precision Timber Joinery

We preserve sound historic fabric using durable timber sill splices, concealed brush draught seals, and A-rated double glazing retrofitted into original box frames.

Surveyor-Led Fixed Quotations

Every home receives an in-depth physical inspection of cords, pulleys, and timber health by Charlie Burgess, followed by a clear, and binding written quotation.

Restored timber sash window with brass sash lifts and clean painted timber sill
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Sash window installation Services Across South London: 020 7046 0157

Local Reputation

Client Feedback on Our Timber Sash Joinery

Read genuine homeowner experiences across Battersea, Wandsworth, Clapham, and South West London. Charlie Burgess oversees every timber sash restoration, draught-proofing project, and bespoke FENSA-certified installation to ensure historical fidelity and thermal performance.

Verified Client

"Charlie replaced some of the wooden frames in our porch which were rotten. He did an excellent job and we are extremely happy with the result. He ands his apprentice were very friendly polite and tidy. It was difficult conditions as it was raining but they were great. Would definitely recommend"

Jane Scoon

Google Verified Review
Verified Client

"We are very happy with Eden Joinery's work: we had a completely new sash fitted, and four sashes fitted into our existing frames. Our windows look fantastic - and no more draughts! Terry and son were courteous, tidy, with competitive rates, and took obvious pride in their work. They went the extra mile to fix a problem with one of our frames, and all windows were finished to a high standard. We would not hesitate to recommend them."

Julie Clayton

Google Verified Review
Verified Client

"Terry and his team did a great job fitting two new sash windows in our house. The windows and work done was all to a high standard, on time and reasonably priced."

Angela Sherratt

Google Verified Review
Timber Restoration Guidance

Frequently Asked Questions

Architectural guidance on heritage sash repair, draught-proofing, and conservation-compliant timber joinery across South London and Westminster.

Can my original Victorian or Georgian sash windows be saved instead of replaced?

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In most cases, yes. Many homeowners are told they need entirely new windows when the existing frames are actually salvageable. We look for ways to repair rather than replace. If your sills have rotted or the lower box frame is soft, we can splice in new, seasoned hardwood or Accoya timber. We use high-quality epoxy resins to seal and bond the repairs, making the wood as strong as it was when first installed. This approach keeps the original character of your Victorian sash restoration or Georgian window repair intact while being more cost-effective than a full replacement.

How does draught proofing improve my timber window refurbishment?

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Original sash windows are notorious for being breezy and rattling during high winds. Our draught-proofing system is a game-changer for London homeowners. We machine hidden brush seals directly into new timber parting beads and staff beads. These seals close the gaps around the meeting rails and stiles without changing how the window looks. This process cuts out the cold air, stops the annoying rattles, and even helps with the noise from busy South West London roads. It makes your home feel much warmer and quieter without the need for bulky, modern frames.

Is it possible to install double glazing in a period property without changing the look?

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Yes, we specialise in fitting A-rated double glazing into existing timber sashes. These units are much thinner than standard double glazing but offer excellent thermal performance. They use argon gas and low-emissivity glass to keep the heat in. Because the units are so slim, we can often fit them into your original sashes or create new bespoke timber sashes that match your existing profiles perfectly. This is an ideal solution for period property joinery where you want the benefits of a modern home but live in a conservation area in Wandsworth or Lambeth.

What should I expect from a sash window repair by Charlie Burgess and the team?

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When you book a survey with Charlie Burgess, you get a detailed assessment of your windows' health. We check the pulleys, the weights, the timber condition, and the glass. A typical repair involves taking the sashes out of the box frame, stripping away old paint that might be causing them to stick, and replacing the sash cords with heavy-duty wax-impregnated cotton. We also rebalance the lead or iron counterweights so the window glides open and stays in place. The goal is to make your windows functional, secure, and beautiful again.

Do I need planning permission for sash window restoration in London conservation areas?

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If we are doing like-for-like timber repairs, you usually do not need planning permission. However, if you live in a property covered by an Article 4 Direction or a Grade II listing, there are stricter rules about changing the glass or the frames. We have extensive experience working within the guidelines of Wandsworth, Richmond upon Thames, and Kingston councils. We can advise you on what is likely to be accepted, such as ultra-slim double glazing or specific timber profiles that satisfy conservation officers while still upgrading your home’s energy efficiency.

Are your timber window replacements and repairs FENSA registered?

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All our full window installations are FENSA registered, which means the work meets current building regulations and you will receive a certificate for your records—essential if you ever decide to sell your property. We also carry £2m in public liability insurance and offer a 10-year guarantee on all our new bespoke timber windows. This gives you peace of mind that your investment in your home’s heritage is protected for the long term.

Still have questions? Speak directly with our South London Sash window installation team today.

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Service Territory

Specialist Timber Sash Window Services Across South West London & Surrey

Based in Battersea (SW8), Director Charlie Burgess delivers bespoke timber sash window installation, heritage restoration, draught-proofing, and double glazing within a 15-mile radius across South West London and Surrey.

Key Local Catchment Areas

Battersea & Wandsworth

  • SW8 & SW11: Battersea Park, Shaftesbury Estate
  • SW4 & SW12: Clapham Common, Balham, Nightingale
  • SW18: Wandsworth Town, Southfields, Earlsfield
  • SW17: Tooting Bec, Tooting Broadway, Furzedown
  • SW15: Putney, Roehampton, Putney Heath
  • + All Wandsworth Article 4 conservation zones

Lambeth, Richmond & Surrey

  • Lambeth: Kennington, Stockwell & Brixton
  • Richmond: Richmond Green, Kew & Twickenham
  • Merton: Wimbledon Village, Raynes Park
  • Kingston: Surbiton, Coombe & New Malden
  • Surrey: Esher, Thames Ditton, Long Ditton
  • + All areas within 15 miles of SW8 base

Heritage Joinery Standards

  • Authentic Victorian & Georgian sightlines
  • A-rated double-glazed units
  • Concealed perimeter draught-proofing
  • Durable sill splicing & box frame restoration
  • FENSA registered with a 10-year guarantee
Detailed Sash Survey

Book with Charlie Burgess

Arrange a comprehensive inspection written quotation for sash repair, restoration, or bespoke installation.

Call: +442070460157

Working cleanly within Controlled Parking Zones and conservation areas across South West London and Surrey. For emergency sash repairs or broken glass, call 020 7046 0157 (Mon–Sat, 08:00–18:00).

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Sunbury-On-Thames

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